package org.jeecg.config;

import org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource;
import javax.sql.DataSource;
import java.util.HashMap;
import java.util.Map;

/**
 * @Description: TODO
 * @author: duanlikao
 * @date: 2021年11月24日 15:15
 */
public class DynamicDataSource extends AbstractRoutingDataSource {
    private static final ThreadLocal<String> contextHolder = new ThreadLocal<>();

    public DynamicDataSource(DataSource defaultTargetDataSource, Map<String, DataSource> targetDataSources) {

        super.setDefaultTargetDataSource(defaultTargetDataSource);
        super.setTargetDataSources(new HashMap<>(targetDataSources));
        super.afterPropertiesSet();
    }

    @Override
    protected Object determineCurrentLookupKey() {
        return getDataSource();
    }

    public static String getDataSource() {
        return contextHolder.get();
    }

    public static void setDataSource(String dataSource) {
        contextHolder.set(dataSource);
    }

    public static void clearDataSource() {
        contextHolder.remove();
    }
}
